GB1050082A - - Google Patents

Info

Publication number
GB1050082A
GB1050082A GB1050082DA GB1050082A GB 1050082 A GB1050082 A GB 1050082A GB 1050082D A GB1050082D A GB 1050082DA GB 1050082 A GB1050082 A GB 1050082A
Authority
GB
United Kingdom
Prior art keywords
tube
rollers
pipe
inflated
tubing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication date
Publication of GB1050082A publication Critical patent/GB1050082A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/16—Straightening or flattening
    • B29C53/20—Straightening or flattening of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

1,050,082. Moulding thermoplastic tubing; tubular films. M. YAZAWA. May 7, 1963 [May 8, 1962], No. 17917/63. Headings B5A and B5B. In a method of 2-dimensionally stretching a moulded thermoplastic pipe or a tubular film, the pipe or tube 2 extruded from a die 1 is cooled and set (by passage through a cooling tank 4 and by introducing cooling liquid thereinto via a tube 8) and passed into a heating tank 19 (through which hot liquid is circulated) where it is inflated by heated pressure liquid discharged through orifices 18 in a feed pipe 16 into the space between two cylindrical plugs 11, 22 over which the tube 22 passes with small clearances permitting controlled leakages of pressure liquid to regulate the inflation pressure. The tube 2 is fed through the apparatus by rollers 3, 26, the rollers 26 being rotated at a higher speed than the rollers 3 to effect the required longitudinal stretching of the tube 2. The plugs 11, 22 may be grooved circumferentially or coated with porous material to increase the resistance to fluid flow thereof. In an alternative method thermoplastic tubing is drawn over a single cylindrical plug only and a tubing section between a pair of nip rollers and the plug is heated and inflated.
GB1050082D 1962-05-08 Expired GB1050082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1784362 1962-05-08

Publications (1)

Publication Number Publication Date
GB1050082A true GB1050082A (en) 1900-01-01

Family

ID=11954939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1050082D Expired GB1050082A (en) 1962-05-08

Country Status (3)

Country Link
US (1) US3313870A (en)
DE (1) DE1629788A1 (en)
GB (1) GB1050082A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1769919C3 (en) * 1968-08-06 1985-03-21 La Cellophane S.A., Paris Improvement of a molecularly oriented film made of polyester
US3544676A (en) * 1969-02-03 1970-12-01 Eastman Kodak Co Flatness control of thermoplastic sheets
JPS4829542B1 (en) * 1969-06-21 1973-09-11
US3788503A (en) * 1969-12-30 1974-01-29 Kohjin Co Method for producing biaxially molecule-oriented poly-{68 -caproamide resin film
US3804567A (en) * 1970-04-06 1974-04-16 Chevron Res Apparatus for cooling and sizing hot thermoplastic extrudates
JPS5223368B2 (en) * 1973-11-26 1977-06-23
US4239830A (en) * 1979-03-29 1980-12-16 Harry Ball Webbed plastic tubing
US4301112A (en) * 1980-05-12 1981-11-17 American Cyanamid Company Process for biaxially oriented acrylonitrile polymer barrier film
JPS57182407A (en) * 1981-05-07 1982-11-10 Idemitsu Petrochem Co Ltd Method and apparatus for preparing biaxially stretched sheet film
EP0142948A3 (en) * 1983-10-24 1985-10-09 Teijin Limited Production of thin-walled cylindrical body of aromatic polyester
DE3516244A1 (en) * 1985-05-06 1986-11-06 Tomi Machinery Mfg. Co. Ltd., Tsunashimahigashi, Yokohama COOLING AND GUIDE DEVICE FOR FILMS MADE OF THERMOPLASTIC RESIN
US4808099A (en) * 1985-11-20 1989-02-28 Minigrip, Inc. Apparatus for making tubular film with transverse closure strips
DE3645194C2 (en) * 1986-04-14 1995-01-05 Windmoeller & Hoelscher Stretched plastic film prodn.
JPH059147Y2 (en) * 1986-05-20 1993-03-08
DE3729449A1 (en) * 1987-09-03 1989-03-16 Hoechst Ag METHOD AND DEVICE FOR PRODUCING AN EXTRUDED, STRETCHED, SEAMLESS TUBE
DE4003696C1 (en) * 1990-02-07 1990-12-13 Petzetakis, George Aristovoulos, Piraeus, Gr
JPH089192B2 (en) * 1990-09-18 1996-01-31 筒中プラスチック工業株式会社 Manufacturing method of resin pipe for existing pipe lining
US5124094A (en) * 1991-03-21 1992-06-23 Minnesota Mining And Manufacturing Company Apparatus and method for constraining a rotating tube of material
US5128076A (en) * 1991-03-21 1992-07-07 Minnesota Mining And Manufacturing Company Apparatus and method for producing an elongate strip of material
US5756041A (en) * 1991-07-11 1998-05-26 Arruda; William C. Method and apparatus for processing blown tube films
CA2077941C (en) * 1992-07-07 2000-06-20 John Louis Varadi Automatic bubble blower for orientation film lines
NL9400453A (en) * 1994-03-22 1995-11-01 Wavin Bv Method and device for manufacturing biaxially oriented tube from thermoplastic plastic material.
US6447278B1 (en) 1998-05-26 2002-09-10 Polymer Processing, Inc. Apparatus for processing blown tube films
WO2018230583A1 (en) * 2017-06-12 2018-12-20 日本合成化学工業株式会社 Water-soluble film, drug package, and production method for water-soluble film

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668323A (en) * 1951-12-12 1954-02-09 Louis Danenberg Means for treating the interior surface of tubing being extruded
NL94153C (en) * 1953-07-31 1900-01-01
NL207418A (en) * 1955-06-03 1900-01-01
BE557399A (en) * 1956-05-15
DE1404350A1 (en) * 1958-06-02 1968-10-03 Dow Chemical Co Manufacture of tubular thermoplastic films
US2966700A (en) * 1958-08-27 1961-01-03 Pont Company Of Canada 1956 Lt Production of thermoplastic seamless tubing
GB858616A (en) * 1958-08-27 1961-01-11 Du Pont Canada Production of seamless thermoplastic tubing
US2979777A (en) * 1958-11-06 1961-04-18 Du Pont Tubular film stretching process
US3085293A (en) * 1960-04-04 1963-04-16 Du Pont Plastic tube forming method
US2987765A (en) * 1960-07-07 1961-06-13 Du Pont Process and apparatus for forming tubes
US3090991A (en) * 1961-01-03 1963-05-28 Monsanto Chemicals Biaxial orientation apparatus
US3092874A (en) * 1961-07-17 1963-06-11 Du Pont Production of thermoplastic polymeric film
US3193547A (en) * 1961-09-07 1965-07-06 Gloucester Eng Co Inc Method and apparatus for extruding plastic

Also Published As

Publication number Publication date
US3313870A (en) 1967-04-11
DE1629788A1 (en) 1971-02-04

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